trto  ilitaeum  of  Natural  i tatorg 

I.IHRARY 

ffifjiragn 


FIELD  MUSEUM  OF  NATURAL  HISTORY. 

PUBLICATION   167. 
ORNITHOLOGICAL  SERIES.  VOL.  I,  No.  7. 


DESCRIPTIONS   OF  TWENTY-EIGHT  NEW 

SPECIES   AND   SUBSPECIES   OF 

NEOTROPICAL  BIRDS 


BY 

CHARLES    B.  CORY 
Curator  of  Department  of  Zoology. 


CHICAGO,  U.  S.  A. 
May  31,  1913. 


DESCRIPTIONS  OF  TWENTY-EIGHT  NEW   SPECIES 
AND  SUBSPECIES  OF  NEOTROPICAL  BIRDS 


BY  CHARLES  B.  CORY 


Nothocercus  Julius  venezuelensis  subsp.  no-u. 

Type  from  Paramo  de  Tama  (near  source  of  the  Tachira  River), 
western  Venezuela  (close  to  the  Colombian  line),  altitude  about  7500 
feet.  Adult  male,  No.  43208,  Field  Museum  of  Natural  History. 
Collected  by  W.  H.  Osgood,  February  26,  1911. 

Similar  to  Nothocercus  Julius,  but  general  color  brighter,  forehead 
and  sides  of  the  head  more  rufous  and  nape  darker;  primaries  blackish; 
lower  part  of  throat  or  foreneck  grayish  and  not  vermiculated;  breast 
clear  tawny  ochraceous,  without  vermiculation,  the  color  decidedly 
more  ochraceous  than  in  Julius;  feathers  of  the  flanks  and  thighs  tipped 
with  yellowish  brown  and  narrowly  barred  with  black,  but  the  bars 
are  broken  and  much  narrower  than  in  Julius. 

Length  (skin),  305  mm.;  wing,  190;  culmen,  26;  tarsus,  160. 

Eupsychortyx  cristatus  continentis  subsp.  nov. 

Type  from  El  Panorama,  Rio  Aurare  (about  fifteen  miles  east  of 
Maracaibo),  northwestern  Venezuela.  Adult  male.  No.  44088,  Field 
Museum  of  Natural  History.  Collected  by  W.  H.  Osgood  and  S.  G. 
Jewett ,  January  22,  1911. 

Similar  to  Eupsychortyx  cristatus  of  the  islands  of  Curacoa  and 
Aruba,  but  larger  and  with  black  stripe  on  side  of  throat  and  black 
superciliary  stripe  much  wider;  middle  of  belly  distinctly  darker  chest- 
nut-rufous and  with  less  black  marking.  The  white  markings  on  the 
feathers  of  the  under  parts  largely  replaced  by  pale  buff;  under  tail 
coverts  tawny  rufous,  becoming  whitish  buff  on  the  edges  and  with 
conspicuous  brownish  black  centers. 

Wing,  104  mm.;  tail,  75;  tarsus,  30;  culmen,  14. 

Urochroma  costaricensis  sp.  nov. 

Type  from  the  vicinity  of  Limon,  Costa  Rica.     Adult  male.     No. 

283 


284    FIELD  MUSEUM  or  NATURAL  HISTORY  —  ORNITHOLOGY,  VOL.  I. 

44389,  Field  Museum  of  Natural  History.     Collected  by  H.  F.  Raven, 
May  23,  1910. 

General  color  green,  the  under  parts  lighter  and  more  yellowish 
especially  on  the  throat ;  forehead  and  greater  portion  of  crown,  upper 
edges  of  lores,  and  a  streak  under  the  eye  dull  nopal  red ;  the  red  of  the 
crown  separated  from  the  eye  by  a  narrow  streak  of  dull  green;  con- 
cealed portions  of  the  feathers  of  the  crown  yellow;  cheeks  bluish  green; 
feathers  of  the  nape  and  base  of  crown  slightly  tinged  with  yellowish 
olive;  cubital  edge  of  wing  bluish  black;  bend  of  wing  and  outer  primary 
coverts  scarlet;  outer  portion  of  under  wing  coverts  scarlet;  inner 
portion  bright  canary  yellow,  but  the  greater  feathers  dull  green  like 
the  inner  edge  of  the  under  surface  of  the  quills ;  quills  black,  all  except 
the  outermost  one  edged  with  green  on  the  outer  webs;  scapulars  and 
rump  grass  green;  tail  feathers  yellow,  edged  with  green  on  the  outer 
webs ;  all  the  tail  feathers  with  the  exception  of  the  two  outer  ones  with 
a  band  of  black  at  or  very  near  the  tips,  the  black  band  increasing  in 
size  towards  the  central  feathers  and  not  complete  on  the  third,  the  two 
outer  feathers  tipped  with  green;  the  black  band  at  the  end  of  the  middle 
tail  feathers  is  separated  from  the  yellow  by  a  patch  of  green;  shafts 
of  rectrices  brownish  black;  bill  yellowish  at  the  tip,  dark  at  the  base; 
feet  dark  (blackish  in  dried  skin). 

Total  length  (skin),  145  mm.  (probably  longer  in  life);  wing,  120;- 
tail,  52;  tarsus,  10;  oilmen,  19. 

The  female  is  similar  to  the  male,  but  differs  in  having  less  extent 
of  red  on  the  bend  of  wing  and  under  wing  coverts;  the  red  of  the  fore- 
head extends  upon  the  lores,  and  the  red  spot  below  the  eye  is  larger 
and  extends  further  downward  and  backward;  the  green  on  the  outer 
webs  of  outer  primaries  and  on  the  shoulder  is  slightly  tinged  with 
bluish. 

This  very  distinct  species  approaches  nearest  to  Urochroma  dilectis- 
sima,  but  may  be  distinguished  at  once  by  its  red  crown  and  other 
characters.  Four  specimens,  2  males  and  2  females,  were  secured  by 
Mr.  Raven. 

Piaya  cayana  venezuelensis  subsp.  nov. 

Type  from  Orope,  Zulia,  Venezuela.  Adult  female,  No.  34589, 
Field  Museum  of  Natural  History.  Collected  by  N.  Dearborn,  March 
6,  1908. 

Similar  to  P.  cayana  cayana,  but  having  the  general  plumage  de- 
cidedly darker;  the  upper  parts  deep  rufous  chestnut  and  the  under 
parts  more  uniformly  dusky. 


MAY,  1913.     NEW  SPECIES  OF  NEOTROPICAL  BIRDS  —  CORY.         285 

Length  (skin),  420  mm.;  wing,  142;  tail,  293;  bill,  28;  tarsus,  34. 

This  subspecies  is  readily  distinguished  from  birds  found  in  the 
dryer  country  about  Rio  Abrore,  some  70  miles  further  north,  the  latter 
being  apparently  intermediate  between  Piaya  cay  ana  cay  ana  and  P. 
cayana  colombiana. 

Momotus  osgoodi  sp.  nov. 

Type  from  El  Guayabal  (ten  miles  east  of  Cucuta),  Colombia. 
Adult  male,  No.  43299,  Field  Museum  of  Natural  History.  Collected 
by  W.  H.  Osgood  and  S.  G.  Jewett,  March  17,  1911. 

Similar  to  Momotus  swainsoni,  but  differs  in  having  the  under  parts 
darker  and  deeper  chestnut,  and  absence  of  the  bluish  post  occular 
area  (which  is  replaced  by  olive  chestnut)  and  having  the  mantle  and 
sides  of  the  neck  strongly  tinged  with  chestnut  and  rest  of  back  olive 
tinged  with  chestnut.  The  exposed  portions  of  the  feathers  forming  the 
nuchal  cincture  bordering  the  black  crown  patch  are  plain  bluish  purple 
without  black  tips.  Color  of  wings,  tail,  and  under  wing  coverts  similar 
to  swainsoni. 

Wing,  127  mm.;  tail,  167,  the  central  feathers,  228;  bill,  35; 
tarsus,  25. 

This  new  species  is  named  for  Mr.  W.  H.  Osgood,  who  collected  the 
type  specimen. 

Scytalopus  magellanicus  grandis  subsp.  nov. 

Type  from  Tambo  Ventija,  ten  miles  east  of  Molinopampa,  Peru 
(mountains  about  30  miles  northeast  of  Chachapoyas) .  Adult  male, 
No.  44390,  Field  Museum  of  Natural  History.  Collected  by  W.  H. 
Osgood  and  M.  P.  Anderson,  June  19,  1912. 

Similar  to  Scytalopus  magellanicus  magellanicus,  but  much  larger; 
entire  plumage  nearly  uniform  plumbeous  black;  the  feathers  of  the 
crown  and  back  slightly  darker  at  the  tips  and  those  of  the  under  parts 
slightly  paler  at  the  tips,  noticeable  when  held  in  the  light ;  bill  brownish 
black;  legs  (in  dried  skin)  dark  brown. 

Total  length  (skin),  167  mm.;  wing,  78;  tail,  60;  bill,  15;  tarsus,  30. 

This  bird  approaches  in  size  nearest  to  S.  femoralis  or  S.  macropus, 
but  differs  from  either  in  having  the  plumage  uniformly  colored.  It 
is  darker  and  larger  than  S.  unicolor  and  decidedly  larger  than  5.  magel- 
lanicus magellanicus,  but  apparently  approaches  it  in  color,  and  on 
account  of  lack  of  sufficient  material  for  comparison  I  have  provision- 
ally considered  it  to  be  a  large  race  of  that  species. 


286    FIELD  MUSEUM  OF  NATURAL  HISTORY  —  ORNITHOLOGY,  VOL.  I. 

Threnetes  frazeri  venezuelensis  subsp.  nov. 

Type  from  Orope,  Zulia,  Venezuela  (Southwest  of  Lake  Mara- 
caibo).  Adult  male,  No.  44391,  Field  Museum  of  Natural  History. 
Collected  by  N.  Dearborn,  March  10,  1908. 

Similar  to  Threnetes  frazeri  frazeri  from  Colombia,  but  slightly 
darker  and  having  the  upper  parts  golden  bronzy  green  (much  less  green 
than  in  frazeri)  and  the  under  parts  slightly  more  buff y  gray ;  iris  dark 
brown;  upper  mandible  black;  under  mandible  yellowish;  "feet  flesh 
color." 

Total  length  (skin),  115  mm.;  wing,  56;  tail,  41;  bill,  30;  tarsus,  3. 

Anthracothorax  prevosti  viridicordatus  subsp.  nov. 

Type  from  El  Panorama,  Rio  Aurare,  Venezuela.  Male,  No. 
43334,  Field  Museum  of  Natural  History.  Collected  by  W.  H.  Osgood, 
January  18,  1911. 

Similar  to  A.  prevosti  prevosti,  but  differs  in  having  the  upper  parts 
bright  grass  green  (not  golden  green^as  in  prevosti  prevosti  and  more 
grass  green  than  in  A.  prevosti  gracilirostris)  and  the  upper  surface  of 
middle  tail  feathers  olive  green;  under  tail  coverts  darker  than  in 
gracilirostris. 

Length  (skin),  118  mm.;  wing,  68;  tail,  36;  bill,  26. 

Glaucis  hirsuta  fusca   subsp.  nov. 

Type  from  Orope,  Zulia,  Venezuela.  (Southwest  of  Lake  Mara- 
caibo.)  Male,  No.  43340,  Field  Museum  of  Natural  History.  Col- 
lected by  N.  Dearborn,  March  7,  1908. 

Similar  to  G.  hirsuta  hirsuta,  but  green  of  the  upper  parts  darker 
and  under  parts  decidedly  darker,  less  rufous  and  more  dusky. 

Wing,  58  mm.;  tail,  40;  culmen,  31. 

Thaumastura  cora  montana   subsp.  nov. 

Type  from  Hda.  Llagueda  (about  twenty  miles  northeast  of  Otuzco) . 
Peru,  altitude  about  7000  ft.  Adult  male,  No.  44161,  Field  Museum 
of  Natural  History.  Collected  by  W.  H.  Osgood  and  M.  P.  Anderson, 
March  15,  1912. 

Similar  to  T.  cora  cora,  but  having  the  upper  parts  clear  green  and 
not  golden  green;  sides  of  the  throat  showing  a  tinge  of  purple  (not 
blue  as  in  T.  cora);  feathers  on  the  sides  of  lower  breast  and  flanks 


MAY,  1913.     NEW  SPECIES  or  NEOTROPICAL  BIRDS  —  CORY.         287 

largely  with  green  centers;  tail  similar  to  that  of  T.  cor  a  but  the  dark 
marking  blacker  and  the  black  tip  showing  a  subterminal  faint  tinge  of 
green. 

Wing,  40  mm.;  tail,  95;  bill,  13. 

Laticauda  rubriginosa    sp.  nov. 

Type  locality  mountains  east  of  Balsas,  Peru.  (On  divide  between 
Balsas  and  Leimabamba,  altitude  10,000  ft.)  Female,  No.  44647, 
Field  Museum  of  Natural  History.  Collected  by  W.  H.  Osgood  and 
M.  P.  Anderson,  May  19,  1912. 

Description.  Upper  parts,  crown,  and  sides  of  head  rich  bronzy  red; 
a  small  buffy  white  spot  in  front  of  and  behind  the  eye.  Throat  buff, 
the  feathers  tipped  with  spots  of  metallic  green;  feathers  of  the  breast 
and  belly  dull  bronzy  red  (tinged  with  olive  green  in  some  lights),  but 
having  a  mottled  appearance  as  all  the  feathers  are  buffy  white  at  the 
bases ;  sides  of  body  strongly  washed  with  bronzy  red ;  under  tail  coverts 
rufous  banded  with  black;  wings  purplish  brown,  the  bend  of  the  wing 
edged  with  rufous ;  under  surface  of  retrices  (except  the  outer  web  of  outer 
feather)  metallic  green,  outer  web  of  outer  tail  feather  blackish  becoming 
pale  at  the  tip;  upper  surface  of  retrices  steel  blue  when  held  in  the  light, 
the  outer  feather  tipped  with  buff  on  the  outer  web.  Bill  and  feet  black. 

Total  length  (skin),  97  mm.;  wing,  60;  tail,  30;  bill,  14.  . 

The  female  described  above  was  the  only  specimen  taken. 

(ialhula  ruficauda  brevirostris  subsp.  nov. 

Type  from  Encontrados  (southwest  of  Lake  Maracaibo),  Venezuela. 
Adult  male,  No.  43355,  Field  Museum  of  Natural  History.  Collected 
by  N.  Dearborn,  February  n,  1908. 

Similar  to  Galbula  ruficauda,  but  bill  decidedly  shorter;  tail  shorter 
and  color  of  the  under  parts  averaging  somewhat  darker;  the  chestnut 
feathers  of  the  tail  are  darker  and  the  upper  surface  of  the  middle  tail 
feathers  less  golden  green. 

Length  (skin),  218  mm.;  wing,  75;  tail,  115;  bill,  38. 

The  average  measurements  of  19  specimens  from  Encontrados  and 
Catatumbo  are  as  follows: 

Eleven  males  —  wing,  75  mm.;  tail,  114;  bill,  42. 

Eight  females  —  wing,  74  mm.;  tail,  100;  bill,  41. 

This  small,  short -billed  form  seems  to  be  confined  to  the  low,  heavily 
forested  region  in  the  vicinity  of  Encontrados  and  Catatumbo. 


288    FIELD  MUSEUM  OF  NATURAL  HISTORY  —  ORNITHOLOGY,  VOL.  I. 

Chelidoptera  tenebrosa  pallida  subsp.  nov. 

Type  from  Empalado  Savannas,  30  miles  east  of  Maracaibo,  Vene- 
zuela. Male,  No.  43380,  Field  Museum  of  Natural  History.  Collected 
by  W.  H.  Osgood,  April  7,  1911. 

Similar  to  C.  tenebrosa  tenebrosa,  but  the  chestnut  abdomen  paler. 
Black  of  the  breast  shading  into  slaty  gray  on  lower  part  and  separated 
from  the  rufous  chestnut  of  the  abdomen  by  a  well  defined  band  of 
white;  cubital  edge  of  wing  tinged  with  rufous  chestnut. 

Length  (skin),  148  mm.;  wing,  112;  tail,  58;  culmen,  16. 

Four  specimens  of  this  new  subspecies  are  in  the  Field  Museum 
collection  and  have  been  compared  with  sixteen  examples  of  C.  tenebrosa 
tenebrosa  from  British  Guiana  and  Peru.  Peruvian  specimens  apparently 
are  not  separable  from  those  from  British  Guiana. 

Picumnus  venezuelensis   sp.  nov. 

Type  from  Encontrados,  Zulia.  Venezuela.  Male,  No.  34631,  Field 
Museum  of  Natural  History.  Collected  by  N.  Dearborn,  February  13, 
1908. 

Special  characters.  Approaches  P.  cinnamomeus  cinnamomeus,  but 
differs  in  being  darker  and  having  the  under  parts  deeper  chestnut;  the 
anterior  part  of  the  forehead  rufous  chestnut,  and  no  white  spots  on  the 
posterior  part  of  the  crown. 

Description.  Back,  rump  and  scapulars  rufous  brown;  under  parts 
darker,  approaching  rufous  chestnut;  nape  and  sides  of  the  head  dark 
like  the  under  parts;  frontal  band  rufous  chestnut  on  anterior  part, 
shading  posteriorly  into  buff;  crown  black,  the  feathers  broadly  tipped 
with  golden  yellow  nearly  as  in  cinnamomeus  but  without  white  spots 
at  the  extreme  hinder  part  as  in  that  species ;  wings  and  tail  as  in  cinna- 
momeus. 

Length  (skin),  97  mm.;  wing,  53;  tail,  33;  bill,  12;  tarsus,  12. 

Phaethornis  anthropilus  fuscicapillus  subsp.  nov. 

Type  from  Orope,  Zulia,  Venezuela.  Adult  female,  No.  43343, 
Field  Museum  of  Natural  History.  Collected  by  N.  Dearborn,  March 
6,  1908. 

Similar  to  P.  anthropilus  anthropilus,  but  crown  darker  brown 
(blackish  brown);  throat  streaks  darker  and  heavier;  breast  darker; 
back  darker  green  and  tips  of  feathers  on  lower  back  and  rump  more 
rufous  buff. 

Length  (skin),  145  mm.;  wing,  55;  tail,  66;  bill,  31. 


MAY,  1913.     NEW  SPECIES  or  NEOTROPICAL  BIRDS  —  CORY.         289 

Camptostoma  pusillum  tenuirostris  subsp.  nov. 

Type  from  Rio  Aurare  (east  of  Maracaibo),  Venezuela.  Adult  male, 
No.  43466,  Field  Museum  of  Natural  History.  Collected  by  W.  H. 
Osgood,  January  12,  1911. 

Similar  to  C.  pussillum  pusillum,  but  differs  in  having  a  more  slender 
and  somewhat  straighter  bill;  the  back  more  olive  and  the  yellow  on 
the  under  parts  brighter;  tail  feathers  narrowly  tipped  with  whitish 
and  outer  tail  feather  narrowly  edged  with  the  same. 

Length  (skin),  90  mm.;  wing,  45;  tail,  40;  bill,  9. 

Empidochanes  zuliensis   sp.  nov, 

Type  from  Orope,  Zulia,  Venezuela.  Male,  No.  43494,  Field 
Museum  of  Natural  History.  Collected  by  N.  Dearborn,  March  12, 
1908. 

Somewhat  similar  to  Empidochanes  cabinisi,  but  much  darker,  more 
olive  and  under  mandible  brownish  white.  Back  dark  brownish  olive, 
the  feathers  with  concealed  whitish  shafts;  crown  dark  brown,  decidedly 
darker  than  the  back;  throat  whitish,  with  a  faint  tinge  of  yellow; 
breast  dusky  olive;  abdomen  whitish,  washed  with  pale  greenish  yellow; 
wings  and  tail  similar  to  E.  cabanisi,  but  slightly  darker  and  the  brown- 
ish tips  of  the  wing  coverts  paler;  upper  mandible  blackish;  under 
mandible  brownish  white. 

Length  (skin),  128  mm.;  wing,  68;  tail,  60;  bill,  13;  tarsus,  12. 

Inezia  caudata  intermedia  subsp.  nov. 

Type  from  Rio  Aurare  (about  15  miles  east  of  Maracaibo),  Vene- 
zuela. No.  44161,  Field  Museum  of  Natural  History.  Collected  by 
W.  H.  Osgood,  January  17,  1911. 

Similar  to  Inezia  caudata  caudata,  but  decidedly  larger;  the  bill 
somewhat  broader  and  the  upper  parts  paler  and  more  greenish  olive; 
breast  with  slight  wash  of  olive  (not  buffy) ;  the  chin  whiter  and  the 
lores  conspicuously  pure  white. 

Length  (skin),  115  mm.;  wing,  53;  tail,  52;  bill,  10,  tarsus,  17. 

Attila  rufipectus  confinis  subsp.  nov. 

Type  from  Orope,  Zulia,  Venezuela,  Female,  No.  44186,  Field 
Museum  of  Natural  History.  Collected  by  N.  Dearborn,  March  12, 
1908. 

Similar  to  A.  rufipectus  rufipectus,  but  somewhat  smaller  and  much 


ago    FIELD  MUSEUM  or  NATURAL  HISTORY  —  ORNITHOLOGY,  VOL.  I. 

darker;  the  color  of  the  upper  parts  deep  rufous  chestnut;  throat  and 
breast  rufous  chestnut ;  the  chin  paler,  flanks  more  strongly  tinged  with 
orange  brown;  rump,  wings  and  tail  similar  to  rufipectus,  but  wing 
coverts  orange  brown;  rump,  wings  and  tail  similar  to  rufipectus, 
but  wing  coverts  tipped  with  darker  rufous;  upper  mandible  brownish 
black. 

Length  (skin),  168  mm.;  wing,  77;  tail,  74;  culmen,  20;  tarsus,  23. 

Thamnophilus  doliatus  dearborn!  subsp.  nov. 

Type  from  Encontrados,  Zulia,  Venezuela.  Adult  male,  No. 
43564,  Field  Museum  of  Natural  History.  Collected  by  N.  Dearborn, 
February  19,  1908. 

Similar  to  T.  doliatus  doliatus,  but  general  color  much  blacker,  the 
white  markings  narrower  and  less  numerous,  and  on  the  tail  feathers 
fewer  and  smaller. 

Wing,  74;  tail,  67;  culmen,  19;  tarsus,  27. 

Adult  female,  No.  43565,  Field  Museum  of  Natural  History,  Encon- 
trados, Zulia,  Venezuela.  Collected  by  N.  Dearborn,  February  12, 
1908. 

Upper  parts  rufous  chestnut,  decidedly  darker  and  less  ferrugineous 
than  in  the  female  of  T.  doliatus  doliatus;  crown  darker  than  back  and 
more  chestnut;  black  stripes  on  side  of  head  broader  and  on  throat 
heavier  and  more  confluent;  under  wing  coverts  darker  than  in  T. 
doliatus  doliatus  and  spotted  with  black ;  tail  darker ;  under  parts  decided- 
ly darker  and  deeper  rufous,  palest  on  the  belly. 

Wing,  73;  tail,  65;  culmen,  19;  tarsus,  27. 

Apparently  a  well  marked  dark  form  inhabiting  the  low  country  in 
the  vicinity  of  the  lower  Catatumbo  River.  I  have  dedicated  this  well 
marked  subspecies  to  Dr.  'N.  Dearborn,  who  collected  a  number  of  the 
new  birds  described  in  this  paper. 

Dendrocincla  tyrannina   hellmayri  subsp.  nov. 

Type  from  Paramo  de  Tama,  Colombia  (headwaters  of  Tachira 
River  near  the  Venezuela  line).  Adult  male,  No.  44185,  Field  Museum 
of  Natural  History.  Collected  by  W.  H.  Osgood,  February  14,  1911. 

Similar  to  D.  tyrannina  tyrannina,  but  general  color  somewhat  more 
olivaceous  (less  rufous),  most  noticeable  on  the  upper  parts;  blackish 
edgings  on  feathers  of  forehead  heavier  and  more  distinct. 

Length  (skin),  260  mm.;  wing,  125;  tail,  115;  culmen,  27;  tarsus,  27. 

I  have  dedicated  this  new  form  to  Dr.  E.  C.  Hellmayr. 


MAY,  1913.     NEW  SPECIES  OF  NEOTROPICAL  BIRDS  —  CORY.         291 

Furnarius   agnatus  venezuelensis  subsp.  nov. 

Type  locality  Rio  Aurare,  Venezuela  (about  15  miles  east  of  Mara- 
caibo).  Adult  female,  No.  44621  Field  Museum  of  Natural  History. 
Collected  by  W.  H.  Osgood  and  S.  G.  Jewett,  January  21,  1911. 

Similar  to  Furnarius  agnatus  but  bill  longer  and  the  middle  of  the 
abdomen  white.  Superciliary  stripe  buffy  white. 

Total  length  (skin),  165  mm.;  wing,  85;  tail,  62;  bill,  22;  tarsus,  29. 

Two  adult  females  were  secured  on  the  Rio  Aurare  in  January  by 
Messrs.  Osgood  and  Jewett  and  an  immature  male  was  taken  near 
Catatumbo,  Venezuela,  in  October,  by  Mr.  H.  F.  Raven. 

Margarornis  perlata  peruviana  subsp.  nov. 

Type  from  Tambo  Ventija  ten  miles  east  of  Molinopampa,  Peru 
(in  mountains  about  30  miles  northeast  of  Chachapoyas) .  Adult  male, 
No.  44587,  Field  Museum  of  Natural  History.  Collected  by  W.  H. 
Osgood  and  M.  P.  Anderson,  June  12,  1912. 

Similar  to  Margarornis  perlata  perlata  but  olive  of  crown,  slightly 
more  rufous  and  the  white  markings  on  feathers  of  the  under  parts 
replaced  by  pale  yellow.  White  patch  on  throat  and  superciliaries 
faintly  washed  with  yellow. 

.  Total  length  (skin),  150  mm.;  wing,  82;  tail,  81;  bill,  12;  tarsus,  18. 

This  well  marked  subspecies  seems  to  be  intermediate  between  M . 
perlata  perlata  and  M.  squamigera  but  approaches  much  nearer  the 
former  in  having  the  olivaceous  crown  very  different  from  the  rufous 
chestnut  back  and  the  feathers  of  the  under  parts  heavily  bordered  with 
black.  Female  similar  but  slightly  smaller.  Seven  specimens  taken, 
four  males  and  three  females. 

Microrhopias  grisea  fumosa  subsp.  nov. 

Type  from  Encontrados,  Zulia,  Venezuela.  Adult  male,  No. 
43582,  Field  Museum  of  Natural  History.  Collected  by  N.  Dearborn, 
February  22,  1908. 

Similar  to  M.  grisea  intermedia  but  darker;  crown  and  back  fuscous 
brown,  and  black  on  under  parts  more  extended;  crown  slightly  darker 
than  the  back  but  shading  into  black  on  the  forehead;  superciliary  stripe 
not  extending  in  front  of  the  eye. 

Apparently  the  darkest  form  of  any  of  the  races  of  this  species. 

Length  (skin),  128  mm.;  wing,  55;  tail,  54;  tarsus,  21;  culmen,  15. 

Coereba  luteola  obscura  subsp.  nov. 

Type  from  Encontrados,  Zulia,  Venezuela.     Adult_male,\No.  43655, 


292    FIELD  MUSEUM  or  NATURAL  HISTORY  —  ORNITHOLOGY,  VOL.  I. 

Field  Museum  of  Natural  History.  Collected  by  N.  Dearborn,  Feb- 
ruary n,  1908. 

Similar  to  C.  luteola  luteola,  but  the  general  plumage  is  darker,  the 
upper  parts  being  almost  black;  the  gray  throat  is  decidedly  darker  and 
the  rump  and  under  parts  deeper  yellow  and  slightly  more  orange. 

Length  (skin),  105  mm.;  wing,  56;  tail,  42;  tarsus,  17;  culmen,  13. 

Diglossa  sittoides  intermedia  subsp,  nov. 

Type  from  Cajamarca,  Peru  (altitude  about  9,000  feet).  Adult 
male,  No.  44472,  Field  Museum  of  Natural  History.  Collected  by 
W.  H.  Osgood  and  M.  P.  Anderson,  April  19,  1912. 

Similar  to  Diglossa  sittoides  sittoides  but  differs  in  haying  the  crown 
and  forehead  bluish  plumbeous  like  the  back,  the  lores  and  about  the 
eye  slightly  darker  (but  not  so  dark  as  in  sittoides},  and  the  under  parts 
much  paler  shading  to  buffy  white  on  the  middle  of  the  belly. 

Total  length  (skin),  115  mm.;  wing,  59;  tail,  50;  bill,  10;  tarsus,  18. 

Synallaxis  candei  venezuelensis  subsp.  nov. 

Type  from  Rio  Aurare,  Venezuela  (about  15  miles  east  of  Maracai- 
bo).  Adult  male,  No.  44473,  Field  Museum  of  Natural  History. 
Collected  by  W.  H.  Osgood  and  S.  G.  Jewett,  January  19,  1911. 

Similar  to  Synallaxis  candei  candei  but  having  a  narrow  line  of  white 
feathers  extending  from  the  nostril  to  the  eye.  The  line  of  demarkation 
between  the  blackish  ends  of  the  tail  feathers  and  their  rufous  bases 
is  much  more  abrupt  than  in  candei  and  not  gradually  shading  from  one 
to  the  other. 

Total  length  (skin),  155  mm.;  wing,  157;  tail,  70;  bill,  12;  tarsus,  20. 

Atlaptes  castaneifrons  tamae  subsp.  nov. 

Type  from  Paramo  de  Tama,  Venezuela  (near  the  Colombian  line, 
headwaters  of  Tachira  River,  altitude  between  6,000  and  7,000  feet). 
Adult  male,  No.  44188,  Field  Museum  of  Natural  History.  Collected 
by  W.  H.  Osgood  and  S.  G.  Jewett,  March  i,  1911. 

Similar  to  Atlaptes  castaneifrons,  but  crown  much  darker  chestnut 
and  narrow  frontal  band  black;  general  color  of  upper  parts  blacker  and 
of  under  parts  darker  and  more  uniformly  gray. 

Length  (skin),  170  mm.;  wing,  75;  tail,  78;  tarsus,  26;  culmen,  13. 

Seven  specimens  taken,  five  males  and  two  females.  The  females 
are  similar  to  the  males,  but  slightly  smaller. 


